Here’s an open source library called ViewMonitor that easily allows you to track the position of any UIView along with other relevant details submitted by Daisuke Yamashita. ViewMonitor can work with all types of UIViews including UITableViews, and displays the position, size, coloring, and font details of each selected view to help make sure views so you can make sure that any views match up with your design sheet

View debugging..

 

Source: Open Source Tool Allowing You To See Details Of Any UIView To Verify Design Specs